The highlighted line intersects the boundary of the face being split. To split a face at its border, use an open loop that ends on the boundary of the face.

public static FailureDefinitionId CurveIntersectsSplitFace { get; }

Public Shared ReadOnly Property CurveIntersectsSplitFace As FailureDefinitionId
	Get

public:
static property FailureDefinitionId^ CurveIntersectsSplitFace {
	FailureDefinitionId^ get ();
}